Fan housing and air conditioner device

Patent metadata

Field	Value
Publication number	US-2020200431-A1
Application number	US-201816639984-A
Country	US
Kind code	A1
Filing date	Aug 14, 2018
Priority date	Aug 18, 2017
Publication date	Jun 25, 2020
Grant date	—

Abstract

The present utility model provides a fan cover shell and an air conditioning unit having the same. The fan cover shell includes an outer frame; multiple annular auxiliary reinforcement ribs, arranged from the center of the fan cover shell towards the outer frame; and multiple main reinforcement ribs, respectively extending from the center of the fan cover shell to the outer frame and intersecting with the auxiliary reinforcement ribs to form multiple ventilation grills; the main reinforcement rib forms a multi-section curve, and any adjacent curves of the multi-section curve bend towards a reverse direction. According to the fan cover shell of the present utility model, a better air guide effect is achieved by optimizing the main reinforcement ribs.

First claim

1 . A fan cover shell, comprising:
an outer frame; multiple annular auxiliary reinforcement ribs, arranged from the center of the fan cover shell towards the outer frame; and multiple main reinforcement ribs respectively extending from the center of the fan cover shell to the outer frame and intersecting with the auxiliary reinforcement ribs to form multiple ventilation grills, wherein the main reinforcement rib forms a multi-section curve, and any adjacent curves of the multi-section curve bend toward a reverse direction; and a first arc-shaped air guide surface is disposed on a windward side of the main reinforcement rib, and a width of the windward side of the main reinforcement rib is greater than that of a leeward side.

2 . The fan cover shell according to claim 1 , wherein the curvature and arc length of the multi-section curve gradually increase from the center of the fan cover shell towards the outer frame.

3 . The fan cover shell according to claim 1 , wherein an angle formed between adjacent main reinforcement ribs is at least 15°.

4 . The fan cover shell according to claim 1 , wherein the main reinforcement rib has a width of 2-3 mm, and a gap between adjacent auxiliary reinforcement ribs is 8 mm-10 mm.

5 . The fan cover shell according to claim 1 , wherein a second arc-shaped air guide surface is disposed at a windward side of the auxiliary reinforcement rib, and a width of the windward side of the auxiliary reinforcement rib is greater than that of the leeward side.

6 . The fan cover shell according to claim 1 , wherein a third arc-shaped air guide surface is disposed at the leeward side of the outer frame.

7 . The fan cover shell according to claim 6 , further comprising multiple grooves disposed at the leeward side of the outer frame and bumps matching the grooves, bolt mounting holes being disposed in the grooves, wherein a surface of the bump facing the leeward side has an outline matching the third arc-shaped air guide surface, and a surface of the bump facing the groove and the groove together form bolt accommodation space.

8 . The fan cover shell according to claim 7 , wherein side walls of the bumps and the grooves are respectively disposed with positioning ribs and/or positioning grooves that match with each other.

9 . The fan cover shell according to claim 7 , comprising 4-8 of the grooves and bumps matching the grooves.

10 . The fan cover shell according to claim 1 , further comprising a center plate disposed at the center of the outer frame, the multiple main reinforcement ribs respectively extending from the center plate to the outer frame.

11 . An air conditioning unit, comprising the fan cover shell according to claim 1 .

Assignees

• Carrier Corp

Inventors

• Zhang Hongbao
• Ji Junjie

Classifications

• F24F13/084 Primary

  with mounting arrangements, e.g. snap fasteners for mounting to the wall or duct · CPC title

• F04D29/703

  specially for fans, e.g. fan guards · CPC title

• F24F2013/088

  Air-flow straightener · CPC title

• F24F13/082 Primary

  Grilles, registers or guards · CPC title

• F05D2250/70

  Shape · CPC title